Means for clearing the surface of dirt-working tools.



D. GARS'T.

MEANS FOR CLEARING THE SURFACE DIRT WORKING TOOLS.

APPLICATION FILED SEPT. 8, 1913.

Patented Dec. 29, 1914 juaze 0787; a

w/i/bwwow 5%4A QMWL WC 1 0 UNITED STATES PATENT OFFICE.-

DU'DLEY GARS'I, OF WATERLOO, IOWA.

MEANS FOR CLEARING THE SURFACE OF DIRT-WORKING TOOLS.

Application filed September 8, 1913.

To all whom it may concern:

Be it known that I, DUDLEY GAns'r, a citizen of the United States of America, residing at Waterloo, in the'county of Blackhawk and State of Iowa, have invented certain new and useful Improvements in Means for Clearing the Surface of Dirt-\Vorking Tools, of which the following is a specification, reference being had therein-to the accompanying drawings.

In the use of shovels, scrapers, plows and the like in soils that are commonly known as gumbo, or where the loam or other dirt has certain tendencies to clog and to stick to any metal that is inserted, it is extremely difiicult to keep the cleaving, cutting or turning surface of the tool in the properly cleaned and polished condition. Various expedients have been usedwithout success to prevent this, the metal being highly polished, a lubricant being poured upon it as it is drawn through or inserted in the soil, and various other devices of like character being tried without obtaining the necessary results. Especially in the use of plows,

the failure of the mold board to scour itself prevents it from performing its usual function and the soil through which it is drawn, instead of being turned over, is simply pushed one side, thereby preventing anything like the proper plowing.

This invention relates to means for clearing the surface of any dirt working tool, such as a plow, scraper, or the like and to an arrangement thereof whereby it is especially adaptable for plows and similar implements used in the cultivation, handling or tilling of what is known as gumbo soil and the like.

The invention consists in the matters hereinafter set forth, and more particularly pointed out in the appended claims.

In the drawings, Figure 1 is a view in side elevation of a plow provided with means that embody' features of the invention; Fig. 2 is a similar view of a plow provided with a modification of the invention; Fig. 3 is a view in detail of one form of operating mechanism.

Referring to the drawings, a plow 1 of ordinary ridingtype or of the so-called sulky design, arranged to be drawn by a :ractor or team, has a plow share 2 or several of them as in a gang plow, of con- Specification of Letters Patent.

Patented Dec. 29, 1914:.

Serial No. 788,531.

ventional or standard design. A tapping member 3 is operatively mounted as in a suitable hanger 4 to strike the rear surface of the plow share at a point that is determined largely by the particular form and material of the latter. Preferably the tapper consists-of a shaft operated as in an ordinary chipping or riveting machine driven by air, the particular mechanism of the latter not being in itself a part of the invention. An air tube or supply pipe leads either to an air reservoir 5 through a controlling valve 6 or directly to some other source of compressed air. As indicated in Fig. l the reservoir may be supplied from a pipe 7 leading forward to a compressor, not shown, on whatever tractor is employed. It is to be understood that the hanger is so disposed that the tapping member may be adjusted to the most effective position.

When it is not convenient to operate the tapper by compressed air it may be driven by one of the traction bearing wheels 8 of the plow. As indicated in Figs. 2 and 3, a bevel gear 9 on the wheel may be geared through a pinion 10 to a flexible shaft ll that rotates a tappet or ratchet wheel 12 mounted in a suitable hanger l3 behind the plow share. A weighted rock arm or hammer 14 forms one end of a bell crank whose other end portion is provided with a roller 15 that is projected by the tappet wheel 12 against the action of a suitable recoil spring 16 by which it is snapped back so that the hammer l l retracts sharply against the plow shaft. As a detail of construction an anvil plate 17 may be formed on or secured to the under face of the plow share to receive the blows of the tapping member. Obviously any form of driving connection for causing the tapping tool to operate properly may be employed if desired.

In operation, the vibration of the plow share by the concussion of the tapping tool, prevents any dirt or soil lodging thereon.

' This keeps the plow share in such condition that the mold board turns the soil over in the proper manner, the plow scours itself and operates as readily as in sandy soil. Similarly, the tapper may be applied to a steam shovel, or other like tool in which the soil tends to cling to one of the surfaces when the tool is forced therethrough and as its application is by a suitable arrangement of the adjusting. hangers, the other forms of tools with siieh attachment added form or arrangement of parts.

have not been shown herein.

Obviously, changes in the details of con- 7 struetion may be made without departing from the spirit of my invention and I do not care tollmit myself to any particular That I claim as my invention is i l. The combination with an implement adapted to cleave through earth, of mean s r for setting up vibrations therein'byconeiis SlOIl.

2. The combinatlon with an earth han;

15 dling implement, of means for tapping the implement b ack-0f the surface traversed by ,the soilfwhenl the implement is passing therethrough. v l I The combination; witha plow, of a tapping member, 111621115 for securing the tapping member to strike against the rear face of the .plow share to set up vibrations there1n,.and.means for operating the tapping member.

Copies of this patent may be obtained for five cents each, by and ressing the f. Commissioner of Patents,

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